Edmund kirkbridb



Alf-408a XR 193159311 SR E. KIRKBHIDE.

FABFHC DUPUCAHNG SHEEY AND METHOD OF MAKlNG IT.

umpnmu Hun AUG.24. 1913.

1,3 15,31 1. r Patenied Sept. 9, 1919.

I Lamplvlack.

E I v I v 7 t with ty wewrrier 6 ribbon ink.

Paper backing sheet.

Fall 71 impregnated In x1171 150 r 6L MM 74;; A g4 N L 'L O r-n UFFii-Siii.

EDMUND KIRKBRIDE, O13 CAMDEN, NEW JERSEY, ASSIGNOR TO TYBON COMPANY, OF 'WILMINGTON, DELAWARE, A CORPORATION OF DELAWARE.

FABRIC DUPLICATING-SHEET AND METHOD OF MAKING IT.

Specification of Letters Patent.

Patented Sept. 9, 1919.

Application filed August 24. 1918. Serial No. 251.255.

' To all 1071 0272. it may con cern Be it known that I, EmIUXn Klnlrninnn, a citizenof the United States, residing at 10i N. Sixth street, Camden, in the county duplicating, Serial No. 262,766, filed November 16, 1918, with which the subject mat ter of this application is related.

Various attempts have been made to make 5 of Camden and State of Xew Jersey, have an ink copying sheet but to the best of my 60 invented a certain new and useful Fabric knowledge all have failed. Perhaps the pat- Duplicating-Shect and Method of Making ents whose structures have come nearest to It, of which the following is a specification. success of these have been \Vortman Patent- My invention relates to a sheetfor copy- NO.'37G,76 -f, Hay Patent. No. 728,461 and ing purposes to be used in the same manner lVest Patent No. 910.887. All of these failed 65 as the present carbon paper but of greater basically, because they attempted to place durability and effectiveness and having and use the ink in a base which was not. greater penetration into the paper upon well suited toeit-her purpose and which. in

.- hi h theimpression is made. use,.wore out before the adi'antagcs of the The main purpose of mv invention is to ink were realized. 7 O render type-writer ribbon ink of any char- Hay further failed because the capillary acter available for copy sheet work. character of the paper upon which he A further purpose is to supply a safe depended to soak up the ink and then backing for fabric copyingsheet which shall distribute it during use causes the collodion not interfere with the ink-holding capacity to be taken up quickly when applied and 75 of the base used. to permeate substantially the entire sheet A further purpose is to provide a safe making it hard and impervious throughout. front facing for the C()P \'i11 g' sheet to pre- In est the non-smudg'in surface w: s ventsmudging and to permit the use of a a. fat surface, which itself tilled up the iarger quantity of ink or an ink of-more capillary passages of the paper and which, 80 moist consistency than would otherwise be rather than the ink, was absorbed by the permissible. paper.

A further purpose is to finish a textile Neither Wortnnufs manifold ink nor li'est fabric sheet in the same way as a carbon printers copying ink was well suited for paper sheet y coating it and subjecting it the purpose described. S5

to heat and pressure. In the drawing. I show'conyentionallv a Y A further purpose is to combine the nontextilt; a backing sheet of paper smudging finish capacity of so called car G which latter is exaggerated in thickness for bon paper with the ink transfer ad 'antages purpose of illustration. IJ L l CXtllQ fabric and permanence of ink record obtainable by is preferably of the same tinelyfivbven linen m the use of typewriter ribbon ink and the webbipgfthatfis used for typewriter ribbon wearing qualities of the typewriter ribbon. afifthe backing may be of any material or Further purposes will appear in the speci put on under any such special circumstances iication and in the claims thereof. as will prevent it from interfering with the 40 I have preferred to illustrate one form distribution of the ink. Any type of sheet 9 only of my invention but without limiting material can be used for this backing purmyself to the construction or arrangement pose or a rubber coating or other suitable shown, selecting a form forillustration coating can be applied before the ink is rewhich has proved to be practical, eiiicient ceived by the fabric where it.- is of such a naand, in a broad sense inexpensive and which ture as not to sink in. Y 106 at the same time well illustrates the princi- \Vhcre there is any danger of the coating ples ofmy invention. or coverin;- forming the backing permctm l igure 1, shows in perspective a textile ing the fabric unduly. it is desirable that fabric sheetwith a paper backing, the relathe textile fabric shall be inked first so that tire proportions being exaggerated for conthe capillary tubes of the fabric will be 105 venience of illustration. filled with the ink prior to the application Fig. 2. shows a section of the sheet shown of the backing material, insuring that no in Fig. 1. threads are occupied by the latter whirl Cross reference is made to applicants coshould be and otherwise would be occupied pending application for fabric sheet for by the ink. 11o

lVith a relatively dry typewriter ink in a textile fabric base and a suitable. backing to give one non-copying or safe surface the sheet is operative and will give good results. It may therefore be regarded as complete. I find however that both for purposes of making the sheet more attractive for sale and of enabling me to use a larger quantity of ink upon the sheet or a more fluid ink, improving its life and quality for transfer purposes. it is desirable to add a surface or finish T to the fabric which gives a bettorappearance and also relatively dries the outer ink surface.

Though there are many materials which may be used for this purpose without t-heinselves interfering with the proper transfer of ink to the'paper sheet, I findthat the transferred along with the ink to the paper .C. v It will be evident that my invention prothe reinainingink content has been weakened or its surface dried sufficiently to be free from objection of sinudging.

'lVit-h my textile fabric sheet the same character of impression is given to the paper sheet upon which the copy is being made as to the so called ribbon copy with which the typewriter ribbon directly en- O'QLQS vides a textile fabric ink support which holds the ink to great advantage and will last as longas the ink itself will continue to transfer; that the sheet will make a permanent copy whose ink is impregnated within the paper as the initial ribbon copy ink is; that the sheet is free from sinudging without objectionable filling of the paper fiber; and that the finish may be made the equal of that of carbon paper. Also the use of my fabric sheets avoids the necessity of a large number of carbon sheets constantly on hand and gives greater uniformity of results on successive copies from the. same sheet than can be secured by carlion sheets unlessthe latter are to be discarded after slight use.

- For convenience of expression I have re ferrcd to the ink as typewriter ribbon ink,

intending to indicate thereby the generals.

ribbon ink in combination with a carbon character of ink used. 2'. 0., the general type of ingredients suitable and the substantial non-drying character of the composition used for such purposes, though it will be appreciated that typewriter ribbon ink contain varying proportions of body and oil according to the character of ribbon to be produced.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. The method of making a. typewriter copying sheet which consists in impregnatsheetimpregnated with typewriter ribbon.

ink which consists in coating itwith a material residing largely on the surface and fact with the ink.

4. A text-ilefabi ic copying sheet adapted to be used for-making a." duplicate. having typewriter ribbon ink therein and having upon an impression-giving side a dry surface to prevent sniudging.

5. A copying sheet adapted to be used for ,niaking a. duplicate and comprising a textile fabric base impregnated with typewriter ribbon ink and having one safe surface andthe other dry to prevent sinndging.

6. Acopying sheet adapted to be used for making a duplicate of the ribbon copy and comprising a textile fabric' base inniregnated with typewriter ribbon ink in combination with a finishing coating upon one.

surface thereof adapted to lie primarily upon the fiber surface and permit ink flow through it into the paper.

7. A typewriter copying sheetcom-prising a textile fabric base, inipragnated with typewriterribbon ink and an added material thereon having a polished surface.

S. A. textile fabric copying sheetimpregnated with typewriter ribbon ink and having an added material on an impres iongiving side thereof forming a drying sur- '-face and permitting increase of the fluidity or quantity of ink.

9. A copying sheet comprising a textile fabricd ase in'ipi'cgnated with typewriter covering therefor.

EDMUN Klli-KBRl'lllC.

Copies of this patent may be obtained for five cents each, by addressing the Uomiiiissioner of latents.

Washington, D. G.

' which permits free ink permeation of the fiber and pressing the material into con- 

